Brother HL-3450CN - Manual (Page 158)

CHAPTER 6 OPTIONS
6-2
1. Remove the Paper Cassette from the printer.
2. Place the Lower Tray Unit on a flat surface.
3. Adjust the Anchor Feet, located
at the rear and right hand side at
the bottom of the Lower Tray
Unit, to level the tray unit. The
Anchor Foot moves up and down
as it is turned. Adjustment is
completed when the Anchor Foot
touches the surface of the work
surface and the tray unit is level.
Turn the lock screw to secure the
Anchor Foot.
Fig. 6-1
4. Remove both side covers from
the Lower Tray Unit.
Fig. 6-2
5. Make sure that the Metal Lock
Plate at the front of the tray unit
is in the Release position.
Fig. 6-3